USB to Serial DB9 Plugin Adapter

Sewell Part # SW-29561


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This easy to use USB to DB9 Serial adapter allows you to add a legacy Serial port to any new computer with an available USB port. A number of older devices like PDAs, digital cameras, and barcode scanners require a serial port; a connection type that most new computers don't have. The solution? The Sewell USB to Serial DB9 Plugin Adapter!

This light weight unit is small, sturdy, and simple to set up and use. The minimal physical footprint makes this ideal to tuck into a laptop case or leave inconspicuously in a USB port. Never be without a serial port again!

Setup is simple, just plug it in and go. This device converts from a regular USB port on your computer to a serial DB9 port suitable for connecting to any legacy style serial devices.


Mfg. Part Number

  • SW-29561


  • Sewell


  • USB specification 1.1 compliant
  • Support Rs232 serial interface DB9
  • Support over 1Mbps data transfer rate
  • Support remote wake-up and power management
  • Suitable for PDA and Modem
  • Available for USB port
  • Support WIN98/2000/XP Mac os v8.6 or higher
  • Prolific Chipset


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USB to Serial DB9 Plugin Adapter